He connected with Keller for a 24-yard gain and then found the former New York Jets tight end five plays later for the score. Safety Chris Prosinski looked lost on the play, the first of many mistakes for the rebuilding Jaguars.

Jacksonville finished with four turnovers: two interceptions and two fumbles on punt returns.

Gabbert was hoping to make a strong impression in the team's preseason opener, the first game for first-year coach Gus Bradley. Bradley selected Gabbert as the starter Thursday, saying he earned it after showing poise and progress in training camp.

But Gabbert's 2013 debut looked a lot like his first two regular seasons. He completed 5 of 10 passes for 19 yards, with an interception. He didn't get much help, though.

Rookie receiver Ace Sanders and fullback Will Ta'ufo'ou dropped passes, and rookie right tackle Luke Joeckel had his hands full with Cameron Wake. The ball off Ta'ufo'ou's hands landed in cornerback Nolan Carroll's arms for an interception.

"It's preseason, so we are still trying to sharpen up things," Jaguars tight end Marcedes Lewis said.

"We are trying to see what we are actually good at and what stuff we need to sharpen up. It's a lot of trial and error still going on. It's an ongoing process. We are working out the kinks."

The Dolphins, coming off a 24-20 loss to Dallas in the Hall of Fame game on Sunday, made it 14-0 on Jonas Gray's 1-yard run in the second quarter.

After giving his starters just 10 snaps against the Cowboys, coach Joe Philbin gave them more work Friday.

It included receiver Mike Wallace, who didn't have a catch or a target in his first game since signing a $60 million, five-year contract. He missed the preseason opener because of a groin injury.

Former Dolphins quarterback Chad Henne, competing with Gabbert for Jacksonville's starting job, was slightly sharper than his teammate. Henne completed 8 of 11 passes for 87 yards. He worked some with the first-team offensive line, but finished up with the second unit.

Both quarterbacks played without three of the offense's top weapons.

Running back Maurice Jones-Drew, who is recovering from foot surgery, sat out as a precaution. Eight others, including starting receivers Cecil Shorts III (calf) and Justin Blackmon (groin), also were held out for Jacksonville.

Rookie wide receivers take over as Texans top Vikings

MINNEAPOLIS (AP) — DeAndre Hopkins caught a 34-yard touchdown pass for the Houston Texans in a 27-13 preseason victory on Friday over the Minnesota Vikings.

The Vikings showcased their rookie wide receiver, too, during a flashy first half by Cordarrelle Patterson.

Hopkins, the 27th overall pick in the draft, had four receptions for 52 yards. Patterson, taken two slots later, caught four passes for 54 yards and returned the opening kickoff 50 yards.

Christian Ponder connected with Jerome Simpson for 15 yards right after that, but when he went back to Simpson on the next play the throw was a bit high and bounced off Simpson's hands and into Shiloh Keo's for an interception.

Ponder, entering a critical third season for his future as Minnesota's quarterback, only took those two snaps.

Taylor emerges in Cardinals' win over Packers

GREEN BAY, Wis. (AP) — Stepfan Taylor can run with the big boys.

Stanford's career rusher leader ran for 64 yards in his NFL debut, and the Arizona Cardinals exposed several trouble spots for the Green Bay Packers in a 17-0 preseason win Friday night. Carson Palmer and Drew Stanton each threw for a touchdown against a Packers secondary that had trouble containing anybody, and Arizona's aggressive new defense had three sacks, one interception and one forced fumble.

Aaron Rodgers connected with James Jones for a 50-yard gain in his only series, and Vince Young showed flashes of potential just three days after signing with the Packers. But those were among the only highlights for the Packers, who were shut out in a full preseason game for the first time since Aug. 22, 1987.

The Packers also were shut out in the 2003 Hall of Fame game, though that game was called because of lightning with 5:49 left in the first quarter.

It got so ugly that Packers fans, among the most loyal in the NFL, booed backup quarterback Graham Harrell late in the third quarter after yet another drive stalled.

Taylor set Stanford records in rushing (4,300 yards) and total touchdowns (45), and the Cardinals drafted him in the fifth round to be a backup to Ryan Williams and Rashard Mendenhall. But with both missing the first preseason game because of nagging injuries — Williams has a sore knee and Mendenhall has patella tendinitis — new Arizona coach Bruce Arians turned Taylor loose in the second quarter.

He didn't disappoint, running right at the defensive line. He ground out gains on short-yardage plays, and also showed a knack for wriggling free for longer runs. Though he never found his way to the end zone, he got the Cardinals in scoring position, only to see two field goal attempts fail.

Former LSU star Tyrann Mathieu also made an impression in his first game in two years, recording a sack and returning two punts.

The Packers threatened on their first drive, with Rodgers finding Jones for the 50-yard gain that put Green Bay at the Arizona 6. But Jermichael Finley dropped a ball on third-and-goal from the 2, and James Starks was stuffed at the 1 to turn the ball over on downs. Things didn't get any better from there, with Harrell getting picked off by Patrick Peterson in his first series and getting sacked and stripped on his second.

Palmer didn't waste any time taking advantage of the interception, throwing a 38-yard touchdown to Andre Roberts on the first play.

Bears' defense shines, but Panthers break through for victory

CHARLOTTE, N.C. (AP) — The Chicago Bears forced three first-half turnovers and linebacker Jonathan Bostic returned an interception 51 yards for a touchdown, but the Carolina Panthers spoiled Marc Trestman's NFL head coaching debut with a 24-17 win over Friday.

The Bears — who forced four turnovers — picked up where they left off last season when they led the NFL with 44 takeaways and finished with nine defensive touchdowns, one shy of the league record.

Jay Cutler was intercepted on his first play from scrimmage by Josh Norman, setting up a touchdown pass from Cam Newton to Brandon LaFell. Cutler completed 6 of 8 passes for 56 yards but the Bears had three turnovers and allowed seven sacks.Newton was 3 of 6 for 16 yards.

Norman had two interceptions, including one he returned 60 yards for a score.

Parker hauls in two touchdowns in Payton's return to Saints

NEW ORLEANS (AP) — Preston Parker had a pair of touchdown catches in his bid to fill one of New Orleans' open receiver spots, and the Saints defeated the Kansas City Chiefs 17-13 in the preseason opener for both teams Friday.

New Chiefs coach Andy Reid saw all he needed of new starting quarterback Alex Smith in the opening drive, which went 80 yards on 14 plays, capped by Jamaal Charles' TD run. Smith was 7 of 8 for 68 yards.

With Saints coach Sean Payton on the sideline for the first time since his bounty ban ended, Drew Brees was 7 of 10 for 65 yards in two series, which produced one field goal.

His longest completion went for 22 yards to rookie Kenny Stills, who like Parker is a candidate to replace injured deep threat Joe Morgan as the Saints' No. 3 receiver behind Marques Colston and Lance Moore.

Wilcox intercepted an ill-advised pass from Terrelle Pryor in the end zone to thwart a promising Raiders drive.

The Cowboys forced just 16 turnovers last year, contributing to the firing of coordinator Rob Ryan, who was replaced by Monte Kiffin as the defense moved from a three-man front to a four-man front. Dallas has forced four turnovers in its first two preseason games under Kiffin.

Kansas City Chiefs wide receiver Josh Bellamy (8) is congratulated by tight end Kevin Brock (46) during the second half of the game against the Green Bay Packers at Arrowhead Stadium.
Denny Medley, USA TODAY Sports

New York Jets tight end Konrad Reuland (88) fumbles after being hit by Philadelphia Eagles linebacker Emmanuel Acho (53) during the first half of a preseason game at Metlife Stadium.
Joe Camporeale, USA TODAY Sports

San Diego Chargers running back Ryan Mathews (24) leaps towards the end zone prior to scoring a touchdown in the first quarter against the Arizona Cardinals during a preseason game at University of Phoenix Stadium.
Mark J. Rebilas, USA TODAY Sports

Arizona Cardinals wide receiver Larry Fitzgerald (11) is tackled by San Diego Chargers cornerback Marcus Gilchrist (38) in the second quarter during a preseason game at University of Phoenix Stadium.
Mark J. Rebilas, USA TODAY Sports

New York Jets quarterback Geno Smith (7) scrambles in his own end zone out of bounds against the New York Giants during the second quarter of a preseason game at MetLife Stadium.
Brad Penner, USA TODAY Sports

Tampa Bay Buccaneers running back Brian Leonard (30) is stopped at the one yard line by Miami Dolphins inside linebacker Dannell Ellerbe (59) in the first quarter at Sun Life Stadium.
Robert Mayer, USA TODAY Sports

New England Patriots tight end Zach Sudfeld (44) celebrates a two point conversion with wide receiver Josh Boyce (82) during the first quarter against the Tampa Bay Buccaneers at Gillette Stadium.
Stew Milne, USA TODAY Sports

New York Jets tight end Jeff Cumberland (87) celebrates with Mark Sanchez (6) after catching a pass for a touchdown in the first quarter of a preseason game against the Detroit Lions at Ford Field.
Andrew Weber, USA TODAY Sports

Detroit Lions wide receiver Matt Willis (12) catches a pass in the end zone for a touchdown while being defended by New York Jets running back Chad Spann (30) in the second quarter of a preseason game at Ford Field.
Andrew Weber, USA TODAY Sports

New England Patriots running back Shane Vereen (34) makes a touchdown catch against the Philadelphia Eagles during the first half of a preseason game at Lincoln Financial Field.
Joe Camporeale, USA TODAY Sports

Seattle Seahawks quarterback Russell Wilson (3) scrambles out of the pocket for a short gain during the first half against the San Diego Chargers at Qualcomm Stadium.
Christopher Hanewinckel, USA TODAY Sports

Dallas Cowboys running back Phillip Tanner (34) runs with the ball after losing his helmet in the second quarter of the 2013 Pro Football Hall of Fame game against the Miami Dolphins at Fawcett Stadium.
Andrew Weber, USA TODAY Sports

Miami Dolphins quarterback Ryan Tannehill (17) is sacked by Dallas Cowboys defensive end Ben Bass (79) in the first quarter of the 2013 Pro Football Hall of Fame game at Fawcett Stadium.
Andrew Weber, USA TODAY Sports